Hi, Dallas Hinton!
I read your message from 29.10.2018 12:58

 AK>> What is a format these books are made? Theoretically, it should be
 AK>> a dot-matrix, raster format.

 DH> I can't speak to that aspect, but there are several widely-accepted
 DH> formats in use:

 DH> EPUB The ePub format is an open format designed by the Open eBook
 DH> Forum and developed by the International Digital Publishing Forum.
 DH> Based on XHTML and XML.

 DH> AZW This is an Amazon format used exclusively on the Amazon Kindle.
 DH> It is basically a MOBI format that uses a high compression option.

 DH> LIT This is an e-book format developed for the Microsoft Reader
 DH> software.

 DH> PDF The Portable Document Format was created by Adobe for its
 DH> Acrobat products.

 DH> ODF OpenDocument Format, XML-based file format, which is the
 DH> default format for OpenOffice, an open source productivity suite
 DH> that is becoming a popular alternative to Microsoft Office.

 DH> MOBI The e-book format used by the MobiPocket Reader

Well, can you take an e-text made according to some of the above mentioned
formats and correct errors with red ink, using a sharp stylus as a teacher pen?
 Then you should be able to save the text and send it to the pupil. ;-)

Bye, Dallas!
Alexander Koryagin
english_tutor 2018

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